Prefabricated road slab

Abstract

The present invention discloses a prefabricated road slab, comprising a reference joint, a main board and an anchoring device. The reference joint is composed of a plurality of joint units connected end to end. The main board includes a panel and a bolt. The panel includes a main panel and a half panel. The main panel and the half panel are laid at intervals on both sides of the reference joint. The anchoring device includes a connecting seat connected to the panel at the edge generated after laying. The connecting seat is provided with a female joint, a male joint, an upper joint or a lower joint that matches the outer side of the panel at the edge. The anchoring device is fixed to the ground through an anchor. The joint structure between the components of the above prefabricated road slab is simple. Only by means of assembly and bolts, the laying can be completed, greatly improving the construction efficiency. It is both lightweight and has excellent mechanical properties.

Description

Technical Field

[0001] The present invention relates to the technical field of temporary road surfaces, and particularly to a prefabricated road panel. Background Art

[0002] The characteristics of prefabricated road panels are simple assembly and high assembly efficiency. In special cases, 2 - 3 people can assemble them manually, and they also have the characteristic of large load - bearing capacity. Therefore, when disasters such as tunnel collapses and water inrusions occur and emergency rescue is required, a simple and temporary rescue access road can be quickly built for equipment and personnel to enter the site.

[0003] Currently, common prefabricated road panels include cement concrete, steel plates, aluminum alloys, and composite materials. Cement concrete is mainly used for the construction of permanent road surfaces. It has strong load - bearing capacity, but its biggest disadvantages are long construction period and difficult repair. If the road surface is damaged, such as corner breakage, step - like displacement, and cracks of the slab, it is difficult to repair locally and requires slab replacement. Even if rapid - setting and early - strength cement is used, it takes at least 8h - 10h for construction, affecting the operation of the access road. For prefabricated road panels of steel plates, aluminum alloys, and composite materials, their load - bearing capacity and quality need to be considered simultaneously. Under the same load - bearing capacity, composite materials and aluminum alloys are lighter, while steel plates are heavier, resulting in high labor intensity during operation. Composite materials are the lightest, but when the bearing capacity is the same as that of aluminum alloys, their size is larger, which is extremely inconvenient for manual and equipment - assisted laying.

[0004] Currently, the application of existing aluminum alloy road panels is relatively mature abroad. In recent years in China, some research and tests on welded honeycomb aluminum have been carried out, but there are problems with insufficient joint bearing capacity and they have not been applied.

[0005] Abroad, the research on prefabricated road panels started in the 1960s. A large number of studies have been carried out on steel plate, aluminum alloy, and composite material road panels, forming various prefabricated road panel systems. However, with the rapid development of the large - scale equipment industry, their load - bearing capacity and fatigue strength are insufficient.

[0006] In China, research and tests have been carried out on welded honeycomb aluminum road panels. The lock - tongue structure is used at the joint connection. Only 3 groups of lock - tongues bear the vertical load. Facing large - mass loads such as large - scale equipment, this part is relatively weak, and the load - bearing capacity of the road panel itself is also lacking.

[0007] Based on the above, it is necessary to develop a prefabricated road panel with large load - bearing capacity, high fatigue strength, light weight, and convenient transportation. Summary of the Invention

[0008] The present invention provides a prefabricated road panel to solve the technical problem that existing prefabricated road panels cannot have both excellent mechanical properties and light weight.

[0009] According to one aspect of the present invention, a prefabricated road panel is provided, including a reference joint, a main board, and an anchoring device. The reference joint is composed of a plurality of joint units connected end to end. The joint unit is a hollow cuboid, with both side edges being female joints, and two first through holes are symmetrically provided at both ends. The first through holes away from the center of the first joint unit and the last joint unit among the plurality of joint units connected end to end are used to fix the reference joint to the ground, and the first through holes close to the center and the two first through holes of other joint units are all used to realize the connection between joint units;

[0010] The main board includes a panel and a bolt. The panel includes a main panel and a half panel. The main panel and the half panel are laid at intervals on both sides of the reference joint. The length dimension of the main panel is greater than that of the half panel, so that the connection points in the width direction of adjacent two rows of panels after laying are not on the same straight line;

[0011] One side in the length direction of the main panel and the half panel is a female joint, and the other side is a male joint matching the female joint; one end in the width direction of the main panel and the half panel is an upper joint, and the other end is a lower joint matching the upper joint. After the upper joint and the lower joint are buckled, a cuboid channel is formed for the bolt to be inserted;

[0012] The anchoring device includes a connecting seat connected to the panel at the edge generated after laying. The connecting seat is provided with a female joint, a male joint, an upper joint or a lower joint matching the panel at the edge. The anchoring device is fixed to the ground through an anchor;

[0013] Further, the reference joint further includes a connecting rod. Two second through holes are symmetrically provided at both ends of the connecting rod. The connecting rod is placed at the ends of two adjacent joint units. Two countersunk head bolts respectively pass through the first through hole of the joint unit and the second through hole of the connecting rod in sequence to realize the fixed connection of two adjacent joint units.

[0014] Further, the panel sequentially includes an upper skin, an intermediate layer, and a lower skin from top to bottom. The intermediate layer is provided with triangular rib plates, and the gaps of the triangular rib plates are filled with resin or fiber; or the intermediate layer is provided with vertical rib plates and honeycomb aluminum; or the intermediate layer is provided with vertical rib plates, and the gaps of the vertical rib plates are filled with resin or fiber.

[0015] Further, the female joint has a concave portion to form an inwardly concave accommodating structure, and the male joint has a convex portion to be an outwardly convex accommodated structure. The convex portion is snapped into the concave portion to fix the connection between the male joint and the female joint.

[0016] Further, the upper joint has two downwardly facing fastening portions and a first groove, and the lower joint has two symmetrically upwardly facing fastening portions and a second groove. When the upper joint and the lower joint are fixedly connected, the four pairwise symmetric fastening portions are engaged with each other, and the first groove and the second groove form a rectangular parallelepiped channel for the insertion of a bolt.

[0017] Further, when the panel at the edge generated after laying and the connecting seat are connected by the upper joint and the lower joint, the bolt is provided with a third through hole for limiting the left and right positions of the bolt.

[0018] Further, the assembled road panel further includes a conversion joint, which includes a first joint assembly and a second joint assembly. The outer side of the first joint assembly is connected to the width directions of a plurality of panels by providing an upper joint or a lower joint matching the width direction of the panel, and the inner side is connected to the inner side of the second joint assembly. The outer side of the second joint assembly is connected to the length directions of a plurality of panels by providing a male joint or a female joint matching the length direction of the panel, so as to realize a 90° conversion of the laying mode of the assembled road panel.

[0019] Further, the inner side of the first joint assembly is provided with a plurality of U-shaped protrusions and U-shaped grooves, and the inner side of the second joint assembly is provided with a plurality of U-shaped grooves and U-shaped protrusions matching the inner side of the first joint assembly, so that the first joint assembly and the second joint assembly fit with each other during connection.

[0020] Further, at least one fourth through hole is provided on both the first joint assembly and the second joint assembly. When the first joint assembly and the second joint assembly fit with each other, the fourth through holes are respectively penetrated by countersunk head bolts to realize the fixed connection between the first joint assembly and the second joint assembly.

[0021] Further, the assembled road panel further includes a widening joint, which is pre-installed between the last main board and the penultimate main board in the length direction of the panel. The widening joint includes a first joint and a second joint that are detachably connected. The first joint is connected to the width direction of the penultimate main board by providing an upper joint or a lower joint matching the penultimate main board, and the second joint is connected to the width direction of the last main board by providing an upper joint or a lower joint matching the last main board.

[0022] The present invention has the following beneficial effects:

[0023] The present invention provides a prefabricated road panel, which includes a reference joint, a main board, and an anchoring device. The joint structure between components is simple. Laying can be completed only by means of assembly and pins, greatly improving the construction efficiency and ensuring firm connection. The joints are divided into four joint forms and two groups of assembly methods. Due to its high efficiency, a variety of different road panels and combined joints can be designed, which can be flexibly applied to various scenarios. Moreover, the "bricklaying" type of assembly method is adopted to stagger the connection parts and enhance the overall anti-fatigue performance. The special edge anchoring device can limit the road surface horizontally and longitudinally and bear the impact force generated when the vehicle brakes. The road panel can be reused and recycled after damage, greatly reducing the construction cost. The prefabricated road panel provided by this application is both lightweight and has excellent mechanical properties.

[0024] In addition to the purposes, features, and advantages described above, the present invention has other purposes, features, and advantages. The following will refer to the drawings to further elaborate on the present invention in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0026] Figure 1 is a schematic structural diagram of the prefabricated road panel according to the preferred embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of the reference joint unit according to the preferred embodiment of the present invention;

[0028] Figure 3 is a partial schematic diagram of the reference joint unit according to the preferred embodiment of the present invention;

[0029] Figure 4 is a cross-sectional view of the reference joint unit according to the preferred embodiment of the present invention;

[0030] Figure 5 is an exploded view of the partial reference joint according to the preferred embodiment of the present invention;

[0031] Figure 6 is a schematic structural diagram of the main panel according to the preferred embodiment of the present invention;

[0032] Figure 7 is a cross-sectional view of the main panel in the A direction according to the preferred embodiment of the present invention;

[0033] Figure 8 is an assembly schematic diagram of the main panel and the length direction (B direction) of the main panel according to the preferred embodiment of the present invention;

[0034] Figure 9It is a schematic assembly diagram of the main panel in the preferred embodiment of the present invention and the width direction (C direction) of the main panel;

[0035] Figure 10 It is a schematic structural diagram of the anchoring device in the preferred embodiment of the present invention;

[0036] Figure 11 It is a schematic structural diagram of the adapter in the preferred embodiment of the present invention;

[0037] Figure 12 It is a schematic structural diagram of the widened joint in the preferred embodiment of the present invention;

[0038] Figure 13 It is a schematic assembly diagram of the widened joint in the preferred embodiment of the present invention;

[0039] Figure 14 It is a schematic structural diagram of the push-pull fixture in the preferred embodiment of the present invention;

[0040] Figure 15 It is a schematic diagram of the main runway paving in the preferred embodiment of the present invention.

[0041] Legend:

[0042] 100 - Main runway; 200 - Sub-runway; 10 - Reference joint; 11 - Joint unit; 12 - First through hole; 13 - Female joint (13); 14 - Steel rod; 15 - Connecting rod; 16 - Second through hole; 17 - Countersunk head bolt; 20 - Main board; 21 - Panel; 211 - Main panel; 212 - Half panel; 22 - Upper skin; 23 - Intermediate layer; 24 - Lower skin; 26 - Plug; 31 - Male joint; 25 - Upper joint; 52 - Lower joint; 30 - Anchoring device; 32 - Connecting seat; 33 - Anchor; 34 - Third through hole; 40 - Adapter; 41 - First joint assembly; 42 - Second joint assembly; 43 - U-shaped groove; 44 - U-shaped protrusion; 50 - Widened joint; 53 - First joint; 54 - Second joint; 60 - Push-pull fixture; 61 - Groove; 62 - Pull ring 62. Detailed implementation manners

[0043] In order to make the invention purpose, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the embodiments described in this specification are only for explaining the present invention and not for limiting the present invention.

[0044] For simplicity, only some numerical ranges are explicitly disclosed in this text. However, any lower limit can be combined with any upper limit to form a range not explicitly recited; and any lower limit can be combined with other lower limits to form a range not explicitly recited, and similarly any upper limit can be combined with any other upper limit to form a range not explicitly recited. In addition, although not explicitly recited, each point or single value between the range endpoints is included in the range. Thus, each point or single value can be used as its own lower or upper limit and combined with any other point or single value or combined with other lower or upper limits to form a range not explicitly recited.

[0045] In the description of this text, it should be noted that unless otherwise specified, "above" and "below" include this number, the meaning of "multiple" in "one or more" is two or more, and the meaning of "multiple" in "one or more" is two or more.

[0046] As Figures 1 - 10 shown, an embodiment of the present invention discloses a prefabricated road panel, including a reference joint 10, a main board 20, and an anchoring device 30. The reference joint 10 is composed of a plurality of joint units 11 connected end to end. The joint unit 11 is a hollow cuboid, both side edges are female joints 13, and two first through holes 12 are symmetrically arranged at both ends. The first through holes 12 of the first joint unit 11 and the last joint unit 11 far from the center among the plurality of joint units 11 connected end to end are used to fix the reference joint 10 to the ground, and the first through holes 12 close to the center and the two first through holes 12 of other joint units 11 are all used to realize the connection between the joint units 11;

[0047] The main board 20 includes a panel 21 and a pin 26. The panel 21 includes a main panel 211 and a half panel 212. The main panel 211 and the half panel 212 are laid at intervals on both sides of the reference joint 10. The length dimension of the main panel 211 is greater than the length dimension of the half panel 212, so that the joints in the width direction of adjacent two rows of panels 21 after laying are not on the same straight line;

[0048] One side in the length direction of the main panel 211 and the half panel 212 is a female joint 13, and the other side is a male joint 31 matching the female joint 13; one end in the width direction of the main panel 211 and the half panel 212 is an upper joint 25, and the other end is a lower joint 52 matching the upper joint 25. After the upper joint 25 and the lower joint 52 are buckled, a cuboid channel is formed for the pin 26 to be inserted;

[0049] The anchoring device 30 includes a connecting seat 32 connected to the edge panel 21 produced after laying. The connecting seat 32 is provided with a female connector 13, a male connector 31, an upper connector 25 or a lower connector 52 that matches the edge panel 21. The anchoring device 30 is fixed to the ground by an anchor 33.

[0050] In some embodiments, the reference joint 10 also includes a connecting rod 15, two second through holes 16 are symmetrically provided at both ends of the connecting rod 15, the connecting rod 15 is placed at the ends of two adjacent joint units 11, and two countersunk bolts 17 respectively pass through the first through hole 12 of the joint unit 11 and the second through hole 16 of the connecting rod 15 in sequence to achieve a fixed connection between the two adjacent joint units 11.

[0051] According to an embodiment of the present application, the reference joint 10 is the reference of the road panel and includes a joint unit 11 and a connecting rod 15. The joint unit 11 is a hollow body with female joints 13 on both sides. The two reference joints 10 are connected by countersunk bolts 17 and connecting rods 15.

[0052] In some embodiments, the first through hole 12 on the outside of the first joint unit 11 and the last joint unit 11 among the multiple end-to-end connected joint units 11 is used to fix the reference joint 10 to the ground. The fixing method can be to insert a steel bar 14 into the first through hole 12 on the outside of the first joint unit 11 and the last joint unit 11 to achieve fixation between the entire reference joint 10 and the ground.

[0053] According to the embodiment of the present application, after the reference connector 10 is fixed, the main board 20 is laid from both sides using it as a reference. The female connector 13 has a concave receiving structure, and the design of female connectors 13 on both sides of the reference connector 10 makes laying the main board 20 more convenient (during laying, the side of the main board 20 with the male connector 31 can be easily inserted into the female connector 13), thereby improving laying efficiency.

[0054] In an embodiment of the present application, the main board 20 includes a panel 21 and a latch 26, and the panel 21 includes a main panel 211 and a half panel 212. The main panel 211 and the half panel 212 are laid at intervals along both sides of the reference joint 10, and the length of the main panel 211 is greater than the length of the half panel 212, so that the connection points of the width directions of the two adjacent panels 21 after laying are not on the same straight line.

[0055] For example, the length dimension of the main panel 211 is twice that of the half panel 212. The long side dimension of the main board 20 can be 1000 - 5000 mm, the short side dimension can be 500 - 1000 mm, and the thickness can be 35 - 50 mm. Adopting the "bricklaying" laying mode, the joints in the width direction of two adjacent panels 21 after laying are not on the same straight line. The above method can make the connection of the pavement panels more stable after laying.

[0056] According to an embodiment of the present application, the main board 20 is divided into a full panel and a half panel 212, and adopts the "bricklaying" laying mode. The panel 21 itself includes an upper skin 22, an intermediate layer, a lower skin 24, a male joint 31, a female joint 13, an upper joint 25, a lower joint 52, and a pin 26. The intermediate layer 23 and the upper and lower skins 24 are integrally brazed, or formed by an extrusion molding process at one time. The male and female joints 13 are welded in the long side direction of the panel 21, and the upper and lower joints 52 are welded in the short side. The pin 26 is used at the splicing of the upper and lower joints 52 on the short sides of two panels 21.

[0057] In some embodiments, the intermediate layer 23 is arranged with reinforcing triangular rib plates, and resin or composite fillers can be filled in the middle to enhance the bearing capacity of the pavement panel. Optionally, the intermediate layer 23 can adopt equally spaced reinforcing rib plates (the thickness can be 1 - 5 mm), or honeycomb aluminum alloy, or arrange honeycomb aluminum alloy between equally spaced reinforcing rib plates to enhance the bearing capacity of the pavement panel.

[0058] In some embodiments, the surface of the upper skin 22 (the thickness can be 3 - 6 mm) is sprayed with an anti-slip material to increase the surface friction. The main board 20 is integrally treated with anti-corrosion measures, such as anodic oxidation, to make it have anti-corrosion performance.

[0059] In an embodiment of the present application, one side of the length direction of the half panel 212 is a female joint 13, and the other side is a male joint 31 that matches the female joint 13; one end of the width direction of the main panel 211 and the half panel 212 is an upper joint 25, and the other end is a lower joint 52 that matches the upper joint 25. After the upper joint 25 and the lower joint 52 are buckled, a rectangular channel is formed for the pin 26 to be inserted.

[0060] In an embodiment of the present application, the female joint 13 has a concave portion, forming an inwardly concave containing structure, and the male joint 31 has a convex portion, which is an outwardly convex structure to be contained. The convex portion is engaged into the concave portion to fixedly connect the male joint 31 and the female joint 13.

[0061] As shown in FIG. 8, the concave portion of the female joint 13 is a containing structure similar to a "C" shape; the male joint 31 is divided into a first convex portion and a second convex portion. After the male joint 31 is inserted into the female joint 13, the first convex portion and the second convex portion form an engagement with the "C" - shaped concave portion.

[0062] According to an embodiment of the present application, the length directions of the main panel 211 and the half panel 212 are laid by the connection mode of the male connector 31 and the female connector 13, which is not only convenient for installation but also firm in connection.

[0063] In an embodiment of the present application, as Figure 9 shown, the upper connector 25 has two downward fastening portions and a first groove, and the lower connector 52 has two symmetrically upward fastening portions and a second groove. When the upper connector 25 is fixedly connected to the lower connector 52, the four pairwise symmetric fastening portions are fastened to each other, and the first groove and the second groove form a rectangular parallelepiped channel for the insertion pin 26 to be inserted.

[0064] According to an embodiment of the present application, the width directions of the main panel 211 and the half panel 212 are laid by the connection mode of the upper connector 25, the lower connector 52 and the insertion pin 26, which is not only convenient for installation but also firm in connection.

[0065] In an embodiment of the present application, as Figure 10 shown, the anchoring device 30 includes a connection seat 32 connected to the edge panel 21 generated after laying. The connection seat 32 is provided with a female connector 13, a male connector 31, an upper connector 25 or a lower connector 52 that matches the outside of the edge panel 21, and the anchoring device 30 is fixed to the ground through an anchor 33.

[0066] In some embodiments, the anchor 33 can be a steel drill 14. The anchoring device 30 is provided with a through hole that matches the steel drill 14. The steel drill 14 passes through the anchoring device 30 through the through hole and is connected to the ground to fix the anchoring device 30 to the ground.

[0067] According to an embodiment of the present application, since there are four types of connectors around the same panel 21, namely the female connector 13, the male connector 31, the upper connector 25 and the lower connector 52, the connection seat 32 of the anchor 33 is also provided with these four types of connectors, which is convenient for fixing with any connector of any panel 21. The anchoring device 30 fixes the pavement slab formed after laying to the ground, improving the safety.

[0068] In an embodiment of the present application, as Figure 10 shown, when the edge panel 21 generated after laying is connected to the connection seat 32 by the upper connector 25 and the lower connector 52, the insertion pin 26 is provided with a third through hole 34 for limiting the left and right positions of the insertion pin.

[0069] According to an embodiment of the present application, the insertion pin 26 is provided with a third through hole 34. By passing a simple insertion pin or a wire through the third through hole 34, the left and right positions of the insertion pin 26 are limited, making the insertion pin 26 not easy to come out, so that the connection seat 32 is stably connected to the edge panel 21.

[0070] In an embodiment of the present application, as Figure 11 shown, the assembled road surface slab further includes a conversion joint 40, the conversion joint 40 includes a first joint component 41 and a second joint component 42, the outer side of the first joint component 41 is connected to the width direction of a plurality of panels 21 by providing an upper joint 25 or a lower joint 52 that matches the width direction of the panel 21, and the inner side is connected to the inner side of the second joint component 42. The outer side of the second joint component 42 is connected to the length direction of a plurality of panels 21 by providing a male joint 31 or a female joint 13 that matches the length direction of the panel 21, so as to realize a 90° conversion of the laying method of the assembled road surface slab 21.

[0071] In an embodiment of the present application, the outer side of the first joint component 41 is connected to the width direction of a plurality of panels 21 by providing an upper joint 25 or a lower joint 52 that matches the width direction of the panel 21. After the upper joint 25 and the lower joint 52 are connected, a dowel pin 26 is inserted.

[0072] In an embodiment of the present application, the inner side of the first joint component 41 is provided with a plurality of U-shaped protrusions 44 and U-shaped grooves 43, and the inner side of the second joint component 42 is provided with a plurality of U-shaped grooves 43 and U-shaped protrusions 44 that match the inner side of the first joint component 41, so that the first joint component 41 and the second joint component 42 fit together when connected, so that the first joint component 41 and the second joint component 42 are not prone to relative displacement and the connection is more stable.

[0073] In an embodiment of the present application, at least one fourth through hole is provided on both the first joint component 41 and the second joint component 42. When the first joint component 41 and the second joint component 42 fit together, the countersunk head bolts 17 respectively pass through the fourth through holes to realize the fixed connection between the first joint component 41 and the second joint component 42. The above design of the U-shaped protrusions 44 and U-shaped grooves 43, and the fixing method by the countersunk head bolts 17 can make the connection between the first joint component 41 and the second joint component 42 very stable.

[0074] Due to the special and complex use scenarios of the assembled road surface slab, if it is necessary to temporarily widen the road surface, the traditional method is to directly continue assembling at the tail plate to achieve the purpose of widening. However, there will be a continuous gap in this way, which affects the load-bearing of the road surface slab. The embodiment of the present application continues to choose the form of "bricklaying" for widening. Obviously, this method requires removing the last main board 20 (tail plate) first, and then using the form of "bricklaying" for widening. However, since the width direction of the panel 21 is connected by the upper joint 25 and the lower joint 52, with the dowel pin 26, this connection method has high connection stability and is not easy to disassemble. The embodiment of the present application designs the following solutions to solve the above problems:

[0075] In an embodiment of the present application, as Figures 12 - 13 shown, the assembled road panel further includes a widening joint 50, which is pre-installed between the last main board 20 and the penultimate main board 20 in the length direction of the panel 21. The widening joint 50 includes a first joint 53 and a second joint 54 that are detachably connected. The first joint 53 is connected to the penultimate main board 20 in the width direction by providing an upper joint 25 or a lower joint 52 that matches the penultimate main board 20. The second joint 54 is connected to the last main board 20 in the width direction by providing an upper joint 25 or a lower joint 52 that matches the last main board 20. After the first joint 53 and / or the second joint 54 are connected to the above-mentioned main board 20 by using the upper joint 25 and the lower joint 52, a pin 26 is used for reinforcement.

[0076] It should be noted that if there is a plan or possibility of widening the assembled road panel, the widening joint 50 needs to be pre-installed between the last main board 20 and the penultimate main board 20 in advance. Countersunk bolt holes 17 are reserved on the first joint 53 and the second joint 54 respectively. The countersunk bolts 17 are passed through the reserved countersunk bolt holes 17 to connect the first main board 20 and the second main board 20.

[0077] In an embodiment of the present application, as Figure 14 shown, when disassembling the tail board, a push-pull fixture 60 can be used. One side of the push-pull fixture 60 has an upper joint 25 or a lower joint 52 that matches the width direction of the main board 20, and a pin 26; the other side is provided with a groove 61 for forklift transportation, and a pull ring 62 is provided on this side. The push-pull fixture 60 can be connected to the power equipment through a rope to disassemble the tail board. Embodiment

[0078] The following embodiments more specifically describe the content disclosed in the present application. These embodiments are only for illustrative purposes, because various modifications and changes within the scope of the content disclosed in the present application are obvious to those skilled in the art.

[0079] This embodiment provides a laying method for an assembled road panel, including the following steps:

[0080] S1: Installation of the reference joint 10

[0081] Install one joint unit 11 in the reference joint 10 at the designated position on the main pavement. Pass a steel bar 14 through the first through hole 12 reserved at the end of the joint unit 11 and fix it to the ground. Assemble the connecting rod 15 to the end of the joint unit 11 away from the steel bar 14 and connect it to the joint with a countersunk bolt 17. Connect one end of another joint unit 11 to the connecting rod 15 and fasten it with another countersunk bolt 17. Determine the number of connections of the link unit according to the on-site situation. After laying, fix the end of the last connection unit to the ground with the steel bar 14 to complete the laying of the reference joint 10.

[0082] S2: Laying of the main pavement 100

[0083] Start laying simultaneously from both ends of the reference joint 10. Use a half panel as the first panel at one end of the reference joint 10 and a full panel as the first panel at the end of the reference joint 10 away from the half panel 212, and lay it in the way of "bricklaying". Specifically:

[0084] Insert the long side of the half panel 212 into the female joint 13 of the reference joint 10 at a certain angle, and install the connecting seat 32 in the edge anchoring device 30 at the center position of the edge of the panel 21 to prevent it from falling off. Use a pile driving device or manual labor and other devices with downward impact force to drive the anchor 33 into the ground for fixation;

[0085] Tilt the full panel at a certain angle, insert the male joint 31 into the reference joint 10, overlap the lower joint 52 on the upper joint 25 of the first panel, and insert the pin 26. Lay it in sequence according to the size of the main pavement 100, and pre-install the widened joint 50 at the tail plate.

[0086] S3: Installation of the conversion (90° conversion) joint

[0087] [[ID=ID=18]]After the main pavement 100 is laid, overlap the lower joint 52 of the pre-installed conversion joint 40 to the tail plate of the main pavement 100, insert the pin 26, and fix both ends to the ground by passing the steel bar 14 through the reserved holes.

[0088] S4: Laying of the secondary pavement 200

[0089] Tilt the main board 20 at a certain angle and insert it into the female joint 13 of the conversion joint 40. The laying method is the same as that in step S2, and sequentially complete the laying of the secondary pavement 200, and pre-install the widened joint 50 at the tail plate.

[0090] S5: Temporary widening of the pavement

[0091] Insert the push-pull fixture 60 into the end of the tailboard, insert the pin 26, and at the same time loosen and remove the connecting piece in the widening joint 50. Connect a power equipment such as a forklift to the push-pull fixture 60 with a rope and remove the tailboard. Assemble the corresponding number of boards according to the widening requirement to achieve the purpose of widening.

[0092] A prefabricated road panel provided by the present invention solves the problem that when sudden disasters such as tunnel collapses and water inrushes occur and emergency rescue is required, a simple and temporary rescue access road can be quickly built for equipment and personnel to enter. The advantages are as follows:

[0093] (1) The inside of the road panel adopts reinforcing ribs and can be filled with composite materials, which increases the bearing capacity while achieving lightweight. In special cases, it can be laid manually by two people.

[0094] (2) The joint structure is simple and effective. The laying can be completed only by assembling and using the pin 26, which greatly improves the construction efficiency.

[0095] (3) The joint is divided into 4 joint forms and 2 groups of assembling methods. Due to its high efficiency, a variety of different road panels and combined joints can be designed and can be flexibly applied to various scenarios.

[0096] (4) The special edge anchoring device 30 can limit the road surface horizontally and longitudinally and bear the impact force generated when the vehicle brakes.

[0097] (5) The special conversion joint 40, with a U-shaped groove structure, can bear the lateral force generated when the vehicle turns. Combined with the edge anchoring device 30, it maintains the stability of the entire road surface.

[0098] (6) The specially designed widening joint 50 can quickly widen the road panel in the "bricklaying" mode.

[0099] (7) The aluminum alloy surface is spray-treated with a large friction coefficient to meet the braking requirements of the road surface. And the road panel is treated with anti-corrosion, and can adapt to the laying and operation in rainy and snowy weather.

[0100] (8) The road panel can be reused and recycled after being damaged, which greatly reduces the construction cost.

[0101] Although the present application has been described with reference to the preferred embodiments, various improvements can be made to it and the components therein can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A prefabricated road slab, characterized in that, It includes a reference joint (10), a main board (20) and an anchoring device (30). The reference joint (10) is composed of a plurality of joint units (11) connected end to end. The joint unit (11) is a hollow cuboid. Both side edges are female joints (13), and two first through holes (12) are symmetrically arranged at both ends. The first through holes (12) far from the center of the first joint unit (11) and the last joint unit (11) among the plurality of joint units (11) connected end to end are used to fix the reference joint (10) to the ground, and the first through holes (12) close to the center and the two first through holes (12) of other joint units (11) are all used to realize the connection between the joint units (11). The main board (20) includes a panel (21) and a bolt (26). The panel (21) includes a main panel (211) and a half panel (212). The main panel (211) and the half panel (212) are laid at intervals on both sides of the reference joint (10). The length dimension of the main panel (211) is greater than the length dimension of the half panel (212), so that the joints in the width direction of adjacent two rows of panels (21) after laying are not on the same straight line. One side in the length direction of the main panel (211) and the half panel (212) is a female joint (13), and the other side is a male joint (31) matching the female joint (13). One end in the width direction of the main panel (211) and the half panel (212) is an upper joint (25), and the other end is a lower joint (52) matching the upper joint (25). After the upper joint (25) and the lower joint (52) are buckled, a cuboid channel is formed for the bolt (26) to be inserted. The anchoring device (30) includes a connecting seat (32) connected to the panel (21) at the edge generated after laying. The connecting seat (32) is provided with a female joint (13), a male joint (31), an upper joint (25) or a lower joint (52) matching the panel (21) at the edge. The anchoring device (30) is fixed to the ground through an anchor (33). The assembled pavement slab further includes a conversion joint (40). The conversion joint (40) includes a first joint component (41) and a second joint component (42). The outside of the first joint component (41) realizes the connection with the width direction of a plurality of panels (21) by being provided with an upper joint (25) or a lower joint (52) matching the width direction of the panel (21), and the inside is connected to the inside of the second joint component (42). The outside of the second joint component (42) realizes the connection with the length direction of a plurality of panels (21) by being provided with a male joint (31) or a female joint (13) matching the length direction of the panel (21), so as to realize a 90° conversion of the laying method of the assembled pavement slab (21). The inner side of the first joint assembly (41) is provided with a plurality of U-shaped protrusions (44) and U-shaped grooves (43), and the inner side of the second joint assembly (42) is provided with a plurality of U-shaped grooves (43) and U-shaped protrusions (44) that match the inner side of the first joint assembly (41), so that the first joint assembly (41) and the second joint assembly (42) fit together when connected.

2. The assembled road slab according to claim 1, wherein The reference joint (10) further includes a connecting rod (15). Two second through holes (16) are symmetrically provided at both ends of the connecting rod (15). The connecting rod (15) is placed in the ends of two adjacent joint units (11). Two countersunk bolts (17) sequentially pass through the first through hole (12) of the joint unit (11) and the second through hole (16) of the connecting rod (15) respectively, to realize the fixed connection of two adjacent joint units (11).

3. The assembled road panel according to claim 1, wherein, The panel (21) sequentially includes an upper skin (22), an intermediate layer (23), and a lower skin (24) from top to bottom. The intermediate layer (23) is provided with triangular rib plates, and the gaps of the triangular rib plates are filled with resin or fibers; or the intermediate layer is provided with vertical rib plates and honeycomb aluminum; or the intermediate layer is provided with vertical rib plates, and the gaps of the vertical rib plates are filled with resin or fibers.

4. The assembled road surface panel according to claim 1, wherein The female joint (13) has a concave portion, forming an inwardly concave accommodating structure, and the male joint (31) has a convex portion, which is an outwardly convex structure to be accommodated. The convex portion is snapped into the concave portion, so that the male joint (31) and the female joint (13) are fixedly connected.

5. The assembled road surface panel according to claim 1, characterized in that, The upper joint (25) has two downwardly facing fastening portions and a first groove, and the lower joint (52) has two symmetrically upwardly facing fastening portions and a second groove. When the upper joint (25) and the lower joint (52) are fixedly connected, the four fastening portions that are pairwise symmetric are fastened to each other, and the first groove and the second groove form a rectangular parallelepiped channel for the insertion pin (26) to be inserted.

6. The assembled road slab according to claim 1, characterized in that, When the panel (21) at the edge generated after laying and the connection seat (32) are connected by the upper joint (25) and the lower joint (52), the insertion pin (26) is provided with a third through hole (34) for limiting the insertion pin left and right.

7. The assembled road surface panel according to claim 1, wherein, At least one fourth through hole is provided on both the first joint assembly (41) and the second joint assembly (42). When the first joint assembly (41) and the second joint assembly (42) fit together, the countersunk bolts (17) pass through the fourth through holes respectively, to realize the fixed connection of the first joint assembly (41) and the second joint assembly (42).

8. The assembled road surface panel according to claim 1, wherein, The assembled pavement slab further includes a widened joint (50). The widened joint (50) is pre-installed between the last main board (20) and the penultimate main board (20) in the length direction of the panel (21). The widened joint (50) includes a first joint (53) and a second joint (54) which are detachably connected. The first joint (53) realizes the connection in the width direction with the penultimate main board (20) by being provided with an upper joint (25) or a lower joint (52) that matches the penultimate main board (20). The second joint (54) realizes the connection in the width direction with the last main board (20) by being provided with an upper joint (25) or a lower joint (52) that matches the last main board (20).

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